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Subsea Technology Conference 5 December 2005 Musikhuset Esbjerg Riserless Light Well Intervention & Through Tubing Rotary Drilling Asle Solheim FMC Production Services AS

Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

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Page 1: Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

Subsea Technology Conference 5 December 2005

Musikhuset Esbjerg

Riserless Light Well Intervention&

Through Tubing Rotary Drilling

Asle Solheim

FMC Production Services AS

Page 2: Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

Floating Production Storage & Offloading Vessels

Turret Mooring Systems

Tension Leg Platforms

Light Well Intervention

GuidelinelessDeepwater Trees

Subsea Manifold

Smart Well Control Systems

Subsea TemplateSystems

Standard Subsea Trees

Metering & Control Systems

Surface Well Systems

ROV Tie-In Systems

Subsea Processing

Subsea Drilling Systems

FMC World Class Subsea SupplierFMC Production Services AS

Page 3: Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

1980BonitoRJS-39189m

1980BonitoRJS-39189m

Strong Deepwater Track Record

ABB5,605 ftABB

5,605 ft

6,080 ft6,080 ft

2,561 ft2,561 ft

3,368 ft3,368 ft

1,613 ft1,613 ft

619 ft619 ftKvaerner

961 ftKvaerner

961 ft

1983PiraúnaRJS-232

293m

1,256 ft1,256 ft

1985MarimbáRJS-284

383m

1992MarlimMRL-9781m

1988PlacidGreen

Canyon 31684m

ABB2,244 ftABB

2,244 ft

1994MarlimMRL-41027m

1997Marlim Sul

MLS-31709m

1997Shell Mensa

1618m

5,308 ft5,308 ft

1999RoncadorRJS-4361853m

1988MarimbáRJS-376D

492m

2000PetrobrasRoncador

1877m

ABB6,157 ftABB

6,157 ft

2004Shell

Coulomb2307m

Cameron7,209 ft

Cameron7,209 ft

2002MarathonCamden

Hills2197m

7,570 ft7,570 ft

WorldRecord

Page 4: Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

Number of Operating & Planned Subsea WellsWorldwide 1985 - 2005

0

500

1000

1500

2000

2500

3000

3500

1985

1990

1995

2000

2005

• Operators have focus on:– Safety

– Optimizing rate of production flow

– Increased Oil Recovery from subsea wells

– Reducing OPEX

– Better capitalization of initial CAPEX

– Rig availability

Source: Infield

Page 5: Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

Norwegian Continental Shelf

0

50

100

150

200

250

300

2002 2006 2010 2014 2018 2022 2026 2030 2034 2038 2042 2046 2050

Year

ly p

rodu

ctio

n of

Oil

& G

as (m

ill S

m3

o.e.

)

New technology, marginal fields etc.

Page 6: Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

“Generic” well production profile

Q Oil%

100

LWI intervention(plug-reperforation ie)

Break even production line

Initial production profile

Production profileafter intervention

80

60

40

20

0Years1 2 3 4 5 6 7 8

Page 7: Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

Statoil ambitions

Background:• 250 subsea wells, increasing

60% of Statoil tot. oil production comes from subsea wells, rising

Ambition:• Increase recovery factor for Statoil subsea

fields from 43% today, to 55% by 2009

Means:• Low cost drainage of smaller reservoir pockets, is one of

several projects

Page 8: Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

Snubbing, Coiled Tubing and WL Tractor operations on Statoil Operated Fields

0

10

20

30

40

50

60

70

80

90

100

110

120

130

140O

pera

tions

pr

Yea

r

1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 H1-2005

Snubbing/RAS: 202 jobs CT: 429 jobs W/L Tractor: 596 jobs LWI: 27 jobs

Page 9: Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

Subsea Riserless Well InterventionIncreased Oil Recovery

Page 10: Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

The “Alliance”

“RLWI Alliance”

“Island Offshore Management”Main contractor Vessel owner

Island Offshore Management

Subsea intervention package

Wireline and downholeservices

Page 11: Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

Island Frontier

Island Frontier

Page 12: Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

“ISLAND WELLSERVER” 2008•Loa 116 m

•Bmld 25 m

•Draught 8,70 m

•Deck area 1150 m sq.

•Transit speed 14 knots

•Deadweight 8200 tons

Island Wellserver

Page 13: Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

Pressure Control Head (PCH)

Upper Lubricator Package (ULP)

Lubricator Tubulars (LUB)

Lower Lubricator Package (LLP)

Lower Intervention Package (LIP)

XT connector

Light Well Intervention System• Main System Features

– Subsea flushing, no well fluid to surface

– Riser back-up

– Toolstring lengths up to 22m

– 7-1/16” bore; 10k psi

– Hydrate inhibitor system

– Subsea grease injection system

• Hardware made and tested in 2002-2003.

• Work performed on NCS fields in 2003

• Worked on UK in 2005

• Won 6 years contract for Statoil

Page 14: Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

Production problems- Water breakthrough- Gas breakthrough- Formation damage- Sand production- Scale

Well Intervention Operations

• Verify fluid properties from different perforated zones

• Install / manipulate various mechanical devices (valves, plugs, screens etc.)

• Well stimulation

• Re-perforation

• Well abandonment

Page 15: Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

TOPSIDE MODULE HANDLING

Skidding system

– All components placed on skidding pallets and secured to skid-beams

– Hydraulic push/pull units moves components on skid-beams to/from moonpool area

No module assembling offshore

- LIP/LLP ready for deployment placed on skidding pallet in front of MHT

- Lubricator sections assembled and racked back in MHT

Page 16: Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

Handling on deck

Page 17: Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

Guided module deployment/retrieval in MHT and through moonpool

Page 18: Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

Umbilical compensation

Page 19: Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

Current status - Current contract - Current preparation for Deep water

• FMC light well intervention used on 4 fields (UK sector)

• 6 year contract with Statoil – Island Offshore “Alliance”

Deepwater concept will be developed next 6 months– Wireline – subsea lubricator

– Composite cable

– Coil Tubing Operations

Page 20: Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

Time Comparison WL Service

(From DEMO 2000)

0

50

100

150

200

250

AnchoredSemi DP Semi Vessel/

Riserless

Hou

rs

Operation

Preparation

Transit

Anchors

Overall time for a 35h wireline operation

Page 21: Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

The “Alliance” Running and Pulling equipment

0

50

100

150

200

250

Activit

yDP Tria

lRun

Lower

stack

Run U

pper s

tack

Run P

CH and f

lush

Flush an

d Retr

ieve P

CHPull

Upp

er sta

ck

Instal

l Deb

ris ca

p han

d ove

r well

Total

"MSV Regalia" Statfjord"MSV Regalia" Visund"MSV Regalia" Åsgard"Island Frontier" Strathspey

Page 22: Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

Experience on different trees

Xt Xt type Pressure Wireline operation

FMC 5” Vertical 5000psi Pulling plug, horizontal well using tractor

Kværner 7” Horizontal 10 000psi Repair DHSV

FMC 7” Horizontal 10 000psi PLT

Cameron 5”

Vertical

5000psi Replacing DHSV

Page 23: Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

Composite cable

• Technology development risk reduced due to:– cable pilot production completed

– prototype injector head and control system tested (2003)

– onshore test part of phase 1

• Tool for extended wirelinecapabilities

• Benefits:– extended reach

– increased payload

– increased power and signal transmission

– facilitates off location operations ieincreased weather window

– facilitates deep water operations

– obsoletes subsea grease injection

• Demo 2000 project supported by Shell and Statoil

Page 24: Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

Composite Cable Features

PEEK insulationt = 0.4 mm

Copper conductorsø 1.5 mm ~ 1.8 mm2

Carbon fibre in matrix ofepoxy-vinyl-ester

Diameter = Ø 9.00 mm

•Minimum strength: 85 kN (9 tons)

•Smooth and hard surface with

uniform dia for good pressure control

•Low cable weight: 135 kg/km

•Higher toolstring weight

•Lower pull-out forces

•Voltage AC / kW: 3.0 kV / 12 kW

•Voltage DC / kW: 4.2 kV / 20 kW

•Minimum storage diameter: 3.0 m

•Possible to include fibreoptic cable

Length up to 10 000 m

Page 25: Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

Throuh Tubing Rotary Drilling (TTRD)Statoil Figures

60 MNOK /Point

120 MNOK /Point

Light weight BOP/hp-riser system

Conventional BOP/riser system

Page 26: Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

Through tubing rotary drilling (TTRD)

• TTRD in place on fixed platform wells

• Cost comparison for operators– Additional well into

existing templates is 70 MUSD

– Side traced well is 10 MUSD

• Coil Tubing Drilling next step?

Page 27: Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

Focus Area

1. HXT, crown plug seal area

-Crown plug protection

-New TH crown plug

2. DHSV protection

DEBRIS CAP

TREE CAP

BALL VALVE

TUBING HANGER

WELLHEADCONNECTOR

XMAS TREEWING HUB

METHANOLLINE

SERVICELINE

WELLHEADSYSTEM

Page 28: Riserless Light Well Intervention - | · PDF fileRiserless Light Well Intervention & ... Q Oil % 100 LWI intervention ... • FMC light well intervention used on 4 fields (UK sector)

Thank you !